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Sirius Driver's Avatar
 
Join Date: Aug 2005
Location: Los Angeles
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Fog light fuse wires

I have a 1983 Euro SC. My fog light switch works since it does light up when its pulled out, but I have no working fogs. I used my multimeter and received no indication of power going to the Foglight housings. The bulbs are good too. So I decided to start looking for a reason why my fogs dont work and noticed that the top wire on the fuse belonging to the fogs is not connected to a source or wire. It has power due to the sparks that came from the wire as I was looking for a loose connection or something. Well I found fit alright. Where should the HOT wire on the top of the fuse, go to? The relay? The switch?

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1982 RoW 3.0 911
1999 996

Last edited by Sirius Driver; 01-02-2011 at 03:51 PM..
Old 01-02-2011, 03:32 PM
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on US models the fogs are only supposed to work when the low beam headlights are on. Look at the wiring diagrams on the host's website. You don't even say what year you have.
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1982 911SC, Mocal oil cooler, Bilsteins, Carrera tensioners, backdated heat, factory short shift, Seine gate shift, turbo tie rods, pop off.
2005 Mercedes-Benz C230 kompressor sport 6-speed (daily driver)
Old 01-02-2011, 03:38 PM
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86 911 Targa's Avatar
 
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Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Quote:
Originally Posted by Sirius Driver View Post
My fog light switch works since it does light up when its pulled out, but I have no working fogs. I used my multimeter and received no indication of power going to the Foglight housings. The bulbs are good too. So I decided to start looking for a reason why my fogs dont work and noticed that the top wire on the fuse belonging to the fogs is not connected to a source or wire. It has power due to the sparks that came from the wire as I was looking for a loose connection or something. Well I found fit alright. Where should the HOT wire on the top of the fuse, go to? The relay? The switch?
The wire from the foglight switch goes to the relay coil.

Here's a pic for our '86 which,
may not be the same as your model/year

My bet is on the relay.

Good luck,

Gerry



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1986 911 Targa.
Per Road and Track magazine:
Only in L.A.:
In the window of a bar in Hermosa Beach, California.
"Happy Hour prices during all car chases."

Last edited by 86 911 Targa; 01-02-2011 at 04:26 PM..
Old 01-02-2011, 03:46 PM
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Thanks that helps. I have a 1983 Euro SC. Now I gotta figure out what terminal on the relay the wire goes to.
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1982 RoW 3.0 911
1999 996
Old 01-02-2011, 03:48 PM
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Quote:
Originally Posted by Sirius Driver View Post
Thanks that helps. I have a 1983 Euro SC. Now I gotta figure out what terminal on the relay the wire goes to.
Here you go.

Also, the fog light controls vary from country to country.

As stated above, in the U.S., the foglights only work with
the headlights in low beams.

Good luck,

Gerry

Manuals
__________________
1986 911 Targa.
Per Road and Track magazine:
Only in L.A.:
In the window of a bar in Hermosa Beach, California.
"Happy Hour prices during all car chases."

Last edited by 86 911 Targa; 01-02-2011 at 04:58 PM..
Old 01-02-2011, 04:01 PM
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Thanks! I got it all figured out and got my Fogs working. Unfortunately I'm a victim of fancy wiring that is going to be a mystery in it self. Now I gotta figure out another small electrical problem, but I'll start another thread regarding that issue.

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1982 RoW 3.0 911
1999 996
Old 01-02-2011, 05:08 PM
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